
#nav{
    width: 300px;
    background: #a0a0a0;
}
.title{
    font-size: 18px;
    font-weight: bold;
    text-indent: 1em;
    line-height: 35px;
    background: red;
}
/*ul li*/
/*list-style:
    none 去点圆心
    circ  空心圆
    decim  数字
    square 正方形
*/
ul{
    background: #a0a0a0;
}
ul li{
    height: 30px;
    list-style: none;
    text-indent: 1em;
}

a{
    text-decoration: none;
    font-size: 14px;
    color: #000;
}
a:hover{
    color: orange;
    text-decoration: underline;
}